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London St Pancras International to Heathrow Airport by train
It takes an average of 1h 6m to travel from London St Pancras International to Heathrow Airport by train, over a distance of around 15 miles (24 km). There are normally 397 trains per day traveling from London St Pancras International to Heathrow Airport and tickets for this journey start from $16.30 when you book in advance.
| First train | 4:42 am | |
|---|---|---|
| Last train | 11:02 pm | |
| Departure station | London St Pancras International | |
| Arrival station | Heathrow Airport | |
| Journey time | From 44m | |
| Distance | 15 miles (24 km) | |
| Frequency | 397 trains per day | |
| Changes | 1 change | |
| Price | From $16.30 | |
| Train operators |
Traveling by train from London St Pancras International to Heathrow Airport
Heading to the airport and need more information on how to travel from London St Pancras International to Heathrow Airport by train? Start your journey with us!
Usually, the train journey from London St Pancras International to Heathrow Airport takes around 1 hour and 17 minutes, although the fastest services can take as little as 1 hour and 13 minutes. As there are no direct trains available on this route, you will need to make at least one change during your journey.
If you’re traveling on this route, you’ll need to head to Kings Cross St Pancras underground station and take the tube to Paddington station. From here, you can jump on the Heathrow Express to the airport. On board you’ll find amenities such as comfortable seating, luggage racks, toilets and bike storage. If you prefer to travel in style, upgrade to Heathrow Express First Class and you’ll enjoy extra legroom, a personal table, power sockets and 4G-enabled WiFi. Before you know it, you will arrive at Heathrow Airport station.
Servicing around 75 million passengers each year, Heathrow Airport is the UK’s busiest airport. Boasting four terminals, there’s plenty to keep you entertained before boarding your flight, including shops, cafes, restaurants and bars.
Want to book cheap train tickets? Try to travel at Off-Peak times, as tickets tend to be cheaper outside of morning/evening rush hours on weekdays. Also, try to book an Advance ticket – they are normally released 12 weeks before the departure date and are usually a lot cheaper than purchasing tickets on the day of travel.
Ready to book? Start a search for cheap train tickets from London St Pancras International to Heathrow Airport now. There’s no need to wait, just head to our Journey Planner at the top of the page! If you’d like to read more information about the train journey, keep reading for FAQs, timetables with first and last train times, as well as tips on booking cheap tickets.
FAQs about the train journey from London St Pancras International to Heathrow Airport
Want to know more about your journey from London St Pancras International to Heathrow Airport? We've compiled some of the most frequently asked questions by our customers to help you plan your journey.
Can you take a train directly from London St Pancras International to Heathrow Airport?
How close is London St Pancras International to Heathrow Airport by train?
Is it possible to get from London St Pancras International to Heathrow Airport without flying?
What is the best way to travel from London St Pancras International to Heathrow Airport?
What time does the first train from London St Pancras International to Heathrow Airport leave?
What time does the last train from London St Pancras International to Heathrow Airport leave?
How often are trains from London St Pancras International and Heathrow Airport?
Do you need to book the train from London St Pancras International to Heathrow Airport in advance?
Can you buy return train tickets from London St Pancras International to Heathrow Airport?
Cheap train tickets from London St Pancras International to Heathrow Airport
Book in advance
Look out for Advance tickets – they usually come out up to 12 weeks before the departure date and can be cheaper than buying on the day. If you’re here a tad early, sign up for our Advance ticket alert today to get notified when your tickets are released.
Consider a Season Ticket
If you catch this train more than 3 times per week, you could save money with a Season Ticket. With annual, monthly and weekly options available, find out if a season ticket for London St Pancras International to Heathrow Airport is right for you.
Use your Railcard
National Railcards offer a 1/3 off eligible train tickets in the UK and can be a great investment if you travel a few times or more in a year. Find out how you can save with a National Railcard here.
Split your tickets
Download our app to find split tickets — courtesy of SplitSave, our handy feature which 'splits' your train tickets where possible to find you a better deal. Learn more about the clever tech behind split tickets, and how to spot SplitSave discounts in our app.
For more money-saving tips on UK and European train travel, read our cheap train tickets guide.
* Based on European average monthly visitors to Trainline’s app and website from 1.1.2023 to 10.31.2023 vs other independent retailers.